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soc/qualcomm/x1p42100: Relocate PRERAM stack to BSRAM memory

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Relocate the PRERAM_STACK region to a new address to resolve a memory
conflict with the QSEE Trust Zone environment.

Details:
 - The previous location of the PRERAM_STACK starting at 0x14680000 in
   SSRAM is now reserved for QC QSEE.

 - This change moves the 16KB PRERAM_STACK from 0x14680000 (SSRAM) to
   the available memory region starting at 0x14850000 in the BSRAM.

BUG=b:456953373
BRANCH=None
TEST=Able to build google/bluey.

Change-Id: Ifa9bc457e28b9ec21aa59c6ab9114993f23b2bc8
Signed-off-by: Subrata Banik <subratabanik@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/90406
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Jayvik Desai <jayvik@google.com>
Reviewed-by: Kapil Porwal <kapilporwal@google.com>
This commit is contained in:
Subrata Banik 2025-12-06 19:45:46 +00:00
commit 4d53aa7704
1 changed files with 4 additions and 2 deletions
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6
src/soc/qualcomm/x1p42100/memlayout.ld
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@ -139,6 +139,8 @@
* 0x14857000 +----------------------------------------------------------+ |
* | VBOOT2_WORK | |
* 0x14854000 +----------------------------------------------------------+ |
* | PRERAM STACK | |
* 0x14850000 +----------------------------------------------------------+ |
* | TTB (Translation Table Base) | |
* 0x14842000 +----------------------------------------------------------+ |
* | TIMESTAMP | |
@ -165,7 +167,7 @@
* 0x146A5000 +----------------------------------------------------------+ |
* | AOP SDI | |
* 0x14699000 +----------------------------------------------------------+ |
* | PRERAM STACK | v
* | Reserved for QSEE | v
* 0x14680000 +----------------------------------------------------------+ <---------
* | ... (Memory not mapped: Unavailable) ... | XXXXXXXXX
* 0x0B100000 +----------------------------------------------------------+ <---------
@ -188,7 +190,6 @@ SECTIONS
AOPSRAM_END(0x0B100000)
SSRAM_START(0x14680000)
PRERAM_STACK(0x14680000, 16K)
REGION(aop_sdi, 0x14699000, 48K, 4K)
REGION(shared_imem, 0x146AA000, 0x1000, 4K)
REGION(ddr_information, 0x146ABFE8, 16, 8)
@ -201,6 +202,7 @@ SECTIONS
PRERAM_CBFS_CACHE(0x14828000, 103K)
TIMESTAMP(0x14841C00, 1K)
TTB(0x14842000, 56K)
PRERAM_STACK(0x14850000, 16K)
VBOOT2_WORK(0x14854000, 12K)
PRERAM_DMA_COHERENT(0x14857000, 8K)
REGION(qclib_serial_log, 0x1485B000, 4K, 4K)